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(11)

EP 2 715 394 A1

(12)

(43) Date of publication: 09.04.2014 Bulletin 2014/15 (21) Application number: 12793270.5 (22) Date of filing: 01.06.2012

(51) International Patent Classification (IPC):  G01S 5/02(2010.01) G01S 5/04(2006.01) G01S 3/00(2006.01) G01S 1/08(2006.01) G01S 5/14(2006.01) H04W 64/00(2009.01) (86) International application number: PCT/IB2012/052780 (87) International publication number: WO 2012/164540 (06.12.2012 Gazette 2012/49)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 03.06.2011 US 201161492965 P (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventors: RANKI, Ville Valtteri FI-02360 Espoo (FI) KAINULAINEN, Antti Paavo Tapani FI-02650 Espoo (FI) BELLONI, Fabio FI-02210 Espoo (FI) KALLIOLA, Kimmo Juhana FI-00350 Helsinki (FI) (74) Representative: Tognetty, Virpi Maria  Nokia Corporation IPR Department Keilalahdentie 4 02150 Espoo 02150 Espoo (FI)